General Description:
The DSM202 module generates linear frequency chirping CW with frequency update rates up to 1/32 of the clock rate. The DSM202 can be controlled using a user-friendly GUI on a PC. The sole RF input is the clock source DDSCK at 2.0 GHz with minimum power of 3 dBm. The outputs of the module consist of a pair of differential analog outputs, DDSOP/DDSON. The DSM202 is our lowest cost linear chirping source solution available.
Key Features:
- 11-bit amplitude and 13-bit phase resolution ROM
- Clock rate up to 2.0 GHz for linear chirping
- Accepts external trigger and generates programmable marker signal
- USB 2.0 compliant interface
- 5.8 W power consumption (at 2.0 GHz clock)
- Includes convenient AC wall adapter so that no external power supplies are needed
- Companion API and software drivers for easy system development
Applications:
- FM chirp source for radars
- Agile LO frequency synthesis
- RF signal source generation
Board Photo:
Graphical User Interface Application:
» To download the DSM Software, API, and Manual, please click here.
Example Waveform Outputs:
The following outputs have a start frequency of 7.8125 MHz, a stop frequency of 125 Mhz, and
a step frequency of 7.8125 Mhz. The DSM202 module input clock was at 2.0 GHz for all four waveforms.
Ramped Chirping
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| Ramped Chirping in Free Run Mode | Ramped Chirping in Burst Run Mode |
Triangle Chirping
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| Triangle Chirping in Free Run Mode | Triangle Chirping in Burst Run Mode |
Detailed Specifications:
| GENERAL | ||
| DDS Frequency Resolution | 32 bits | |
| Frequency Update Rate | 1/32 of Input Clock | |
| Waveform Generation Modes |
Continuous
Triggered Continuous Triggered Burst |
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| Waveform Profiles |
Ramp
Triangle Level Control (Optional) |
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| User Interface |
USB
Windows GUI, USB |
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| INPUT CLOCK | ||
| Type | Single Ended, Sinusoidal or Square Wave | |
| Termination | 50 ohms | |
| Connector Type | SMA | |
| Frequency Range | 1 GHz to 2 GHz for chirping | |
| Power Level | 3 dBm to 18 dBm | |
| Return Loss | 10 dB | |
| OUTPUT | ||
| Type | Differential | |
| Termination | 50 ohms | |
| Connector Type | SMA | |
| Output Sampling Rate Range | 1 GSPS to 2 GSPS | |
| Output Maximum Frequency | Half of Sampling Rate | |
| Output Level | -635 mV to 0 V | |
| Output Power | -4 dBm to 0 dBm | |
| Residual Phase Noise @ 10kHz from Carrier | -145 dBc/Hz | |
| Output Return Loss | 15 dB | |
| TRIGGER | ||
| Connector Type | SMA | |
| Source | External | |
| External Trigger Threshold Levels |
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| MARKER | ||
| Number of Markers | 1 | |
| Marker Length | 1/4 of Chirp Length | |
| Marker Output Level |
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| API | ||
| Version | Euvis API 2.0 | |
| CLR Language Support |
Visual C++
Visual C# Visual Basic Visual J# |
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Board Diagram:
Detailed Datasheet:
To get the complete DSM202 datasheet, please click here.
Email to: info@euvis.com to get pricing information.